JP4079144B2 - 燃料噴射弁 - Google Patents
燃料噴射弁 Download PDFInfo
- Publication number
- JP4079144B2 JP4079144B2 JP2004368558A JP2004368558A JP4079144B2 JP 4079144 B2 JP4079144 B2 JP 4079144B2 JP 2004368558 A JP2004368558 A JP 2004368558A JP 2004368558 A JP2004368558 A JP 2004368558A JP 4079144 B2 JP4079144 B2 JP 4079144B2
- Authority
- JP
- Japan
- Prior art keywords
- cavitation
- fuel
- flow path
- channel
- injection valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/08—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series the valves opening in direction of fuel flow
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
- F02M61/12—Other injectors with elongated valve bodies, i.e. of needle-valve type characterised by the provision of guiding or centring means for valve bodies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/162—Means to impart a whirling motion to fuel upstream or near discharging orifices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1853—Orifice plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1853—Orifice plates
- F02M61/186—Multi-layered orifice plates
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel-Injection Apparatus (AREA)
Description
Claims (7)
- 燃料を噴孔から噴射する燃料噴射弁であって、
噴射弁内部を流れる燃料にキャビテーション気泡を発生させるためのキャビテーション発生流路と、
キャビテーション発生流路及び噴孔と連通し、キャビテーション発生流路により発生させたキャビテーション気泡を保持する気泡保持流路と、
を有し、
キャビテーション発生流路から気泡保持流路に移行する際の流路を急拡大させており、
気泡保持流路は、キャビテーション発生流路を流れる燃料噴流の方向に対して噴孔への流出口がキャビテーション発生流路から気泡保持流路に移行する際の流路を急拡大させた方向へオフセットした状態で、キャビテーション発生流路及び噴孔と連通し、内部に渦を形成して渦中心付近にキャビテーション気泡を保持する流路であり、
気泡保持流路内に保持されたキャビテーション気泡を含む燃料を噴孔から噴射することを特徴とする燃料噴射弁。 - 請求項1に記載の燃料噴射弁であって、
気泡保持流路の断面積がキャビテーション発生流路の断面積より大きい状態で、燃料を噴孔から噴射することを特徴とする燃料噴射弁。 - 請求項1または2に記載の燃料噴射弁であって、
噴孔の断面積がキャビテーション発生流路の断面積より大きい状態で、燃料を噴孔から噴射することを特徴とする燃料噴射弁。 - 請求項1〜3のいずれか1に記載の燃料噴射弁であって、
キャビテーション発生流路の入口部の断面積が気泡保持流路側へ向かうにつれて徐々に減少することを特徴とする燃料噴射弁。 - 請求項1〜4のいずれか1に記載の燃料噴射弁であって、
キャビテーション発生流路の断面積が気泡保持流路側へ向かうほど小さいことを特徴とする燃料噴射弁。 - 請求項1〜5のいずれか1に記載の燃料噴射弁であって、
気泡保持流路は、キャビテーション発生流路を流れる燃料噴流とほぼ対向している壁面の形状が噴孔への流出口にかけて湾曲した曲面形状を呈することを特徴とする燃料噴射弁。 - 請求項1〜6のいずれか1に記載の燃料噴射弁であって、
噴射弁内部を流れる燃料に旋回流を発生させるための旋回流発生流路がキャビテーション発生流路より上流部またはキャビテーション発生流路に形成されていることを特徴とする燃料噴射弁。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004368558A JP4079144B2 (ja) | 2004-12-20 | 2004-12-20 | 燃料噴射弁 |
US11/300,365 US7712684B2 (en) | 2004-12-20 | 2005-12-15 | Fuel injection valve |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004368558A JP4079144B2 (ja) | 2004-12-20 | 2004-12-20 | 燃料噴射弁 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006177174A JP2006177174A (ja) | 2006-07-06 |
JP4079144B2 true JP4079144B2 (ja) | 2008-04-23 |
Family
ID=36594476
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004368558A Expired - Fee Related JP4079144B2 (ja) | 2004-12-20 | 2004-12-20 | 燃料噴射弁 |
Country Status (2)
Country | Link |
---|---|
US (1) | US7712684B2 (ja) |
JP (1) | JP4079144B2 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013185455A (ja) * | 2012-03-06 | 2013-09-19 | Mazda Motor Corp | 燃料噴射弁、及び該燃料噴射弁を備えた内燃機関 |
Families Citing this family (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4720724B2 (ja) * | 2006-11-13 | 2011-07-13 | トヨタ自動車株式会社 | 燃料噴射弁 |
JP4760815B2 (ja) * | 2007-11-07 | 2011-08-31 | 株式会社デンソー | ノズル |
US7617993B2 (en) * | 2007-11-29 | 2009-11-17 | Toyota Motor Corporation | Devices and methods for atomizing fluids |
JP2009236048A (ja) * | 2008-03-27 | 2009-10-15 | Toyota Motor Corp | 内燃機関の燃料噴射弁 |
JP5188899B2 (ja) * | 2008-07-11 | 2013-04-24 | 日立オートモティブシステムズ株式会社 | 燃料噴射弁 |
JP5312069B2 (ja) * | 2009-01-30 | 2013-10-09 | トヨタ自動車株式会社 | 燃料噴射弁 |
JP4808801B2 (ja) * | 2009-05-18 | 2011-11-02 | 三菱電機株式会社 | 燃料噴射弁 |
JP5115659B2 (ja) | 2010-04-08 | 2013-01-09 | トヨタ自動車株式会社 | 燃料噴射弁 |
JP5115654B2 (ja) | 2010-07-01 | 2013-01-09 | トヨタ自動車株式会社 | 燃料噴射弁及び内燃機関 |
EP2657508A4 (en) | 2010-12-20 | 2015-05-20 | Toyota Motor Co Ltd | FUEL INJECTOR |
EP2657506B1 (en) * | 2010-12-20 | 2015-10-14 | Toyota Jidosha Kabushiki Kaisha | Fuel injection valve |
JP5494824B2 (ja) | 2010-12-20 | 2014-05-21 | トヨタ自動車株式会社 | 燃料噴射弁 |
DE102011003163A1 (de) * | 2011-01-26 | 2012-07-26 | Robert Bosch Gmbh | Einspritzventil mit Durchflussbegrenzer |
JP5725150B2 (ja) | 2011-02-23 | 2015-05-27 | トヨタ自動車株式会社 | 燃料噴射弁 |
JP5830891B2 (ja) * | 2011-03-25 | 2015-12-09 | トヨタ自動車株式会社 | 燃料噴射弁 |
EP2693041A4 (en) | 2011-03-31 | 2015-04-22 | Toyota Motor Co Ltd | FUEL INJECTION DEVICE |
JP2013224598A (ja) * | 2012-04-20 | 2013-10-31 | Toyota Motor Corp | 燃料噴射装置 |
WO2014022631A1 (en) * | 2012-08-01 | 2014-02-06 | 3M Innovative Properties Company | Fuel injectors with improved coefficient of fuel discharge |
WO2015024139A1 (zh) * | 2013-08-19 | 2015-02-26 | Wang Kangmei | 离心式伞喷喷油嘴 |
DE102014200756A1 (de) * | 2014-01-17 | 2015-07-23 | Robert Bosch Gmbh | Gasinjektor zum Direkteinblasen von gasförmigem Kraftstoff in einen Brennraum |
JP6412379B2 (ja) * | 2014-09-18 | 2018-10-24 | 日立オートモティブシステムズ株式会社 | 燃料噴射弁 |
KR101710411B1 (ko) * | 2015-06-18 | 2017-02-27 | 한국항공대학교산학협력단 | 오버 드라이브가 가능한 핀틀 인젝터 및 그 유량 제어 방법 |
US10006429B2 (en) * | 2016-03-31 | 2018-06-26 | GM Global Technology Operations LLC | Variable-area poppet nozzle actuator |
DK179484B1 (en) | 2017-05-26 | 2018-12-17 | Hans Jensen Lubricators A/S | Method for lubricating large two-stroke engines using controlled cavitation in the injector nozzle |
US10823127B2 (en) * | 2018-03-14 | 2020-11-03 | Ford Global Technologies, Llc | Methods and systems for a fuel injector |
JP7214277B1 (ja) * | 2022-04-27 | 2023-01-30 | 株式会社サイエンス | バブル液発生ノズル |
Family Cites Families (27)
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US2753217A (en) * | 1952-11-08 | 1956-07-03 | Texas Co | Fuel injection nozzle for internal combustion engine |
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US6357677B1 (en) * | 1999-10-13 | 2002-03-19 | Siemens Automotive Corporation | Fuel injection valve with multiple nozzle plates |
JP2001182641A (ja) | 1999-12-24 | 2001-07-06 | Denso Corp | 燃料噴射ノズルおよびその製造方法 |
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US6817545B2 (en) * | 2002-01-09 | 2004-11-16 | Visteon Global Technologies, Inc. | Fuel injector nozzle assembly |
JP2004019481A (ja) | 2002-06-13 | 2004-01-22 | Denso Corp | 燃料噴射ノズル |
JP2004316598A (ja) | 2003-04-18 | 2004-11-11 | Denso Corp | 内燃機関用燃料噴射ノズル |
ATE419076T1 (de) * | 2003-05-21 | 2009-01-15 | Arkaim Inc | Düse zum erzeugen von kavitation mit hoher energie |
-
2004
- 2004-12-20 JP JP2004368558A patent/JP4079144B2/ja not_active Expired - Fee Related
-
2005
- 2005-12-15 US US11/300,365 patent/US7712684B2/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2013185455A (ja) * | 2012-03-06 | 2013-09-19 | Mazda Motor Corp | 燃料噴射弁、及び該燃料噴射弁を備えた内燃機関 |
Also Published As
Publication number | Publication date |
---|---|
JP2006177174A (ja) | 2006-07-06 |
US20060131447A1 (en) | 2006-06-22 |
US7712684B2 (en) | 2010-05-11 |
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